.page-news {
  --news-line: rgba(199, 154, 69, 0.5);
  --news-rail: 272px;
  --news-sticky: 84px;
  background: var(--paper);
  color: var(--ink);
}

.page-news .shell {
  padding-top: clamp(16px, 3vw, 28px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* 页头 */
.page-news .news-head {
  display: grid;
  gap: 16px;
  max-width: 54rem;
  padding: clamp(20px, 3.6vw, 40px) 0 clamp(28px, 4.4vw, 52px);
}

.page-news .page-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2rem, 7.4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .page-lede {
  margin: 0;
  max-width: 42rem;
  font-size: clamp(1rem, 2.4vw, 1.0625rem);
  line-height: 1.8;
  color: rgba(34, 26, 21, 0.8);
}

/* 本季专题 */
.page-news .feature {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-l);
  background: var(--red);
  color: var(--snow);
  margin-bottom: clamp(44px, 6vw, 84px);
  isolation: isolate;
}

.page-news .feature-art {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-news .feature-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(0.85);
}

.page-news .feature::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(120deg, rgba(124, 43, 32, 0.94) 34%, rgba(166, 61, 46, 0.6) 100%);
}

.page-news .feature-body {
  padding: clamp(26px, 5vw, 58px);
  max-width: 44rem;
}

.page-news .feature-kicker {
  margin: 0 0 14px;
  color: var(--sand);
}

.page-news .feature-title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.5rem, 5vw, 2.375rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-news .feature-text {
  margin: 0 0 22px;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(253, 251, 247, 0.9);
}

.page-news .feature-more summary {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--sand);
  border-bottom: 1px solid rgba(234, 220, 198, 0.5);
  padding-bottom: 4px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .feature-more summary::-webkit-details-marker {
  display: none;
}

.page-news .feature-more summary::after {
  content: "＋";
  font-size: 13px;
}

.page-news .feature-more[open] summary::after {
  content: "－";
}

.page-news .feature-more summary:hover,
.page-news .feature-more summary:focus-visible {
  color: var(--snow);
  border-color: var(--snow);
  outline: none;
}

.page-news .feature-more-body {
  margin-top: 18px;
  display: grid;
  gap: 14px;
  padding-left: 14px;
  border-left: 1px solid rgba(234, 220, 198, 0.45);
}

.page-news .feature-more-body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(253, 251, 247, 0.84);
}

/* 左栏 + 条目流 */
.page-news .board {
  position: relative;
  display: grid;
  gap: 34px;
  align-items: start;
}

.page-news .board-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-news .rail-inner {
  display: grid;
  gap: 22px;
}

.page-news .rail-label {
  margin: 0 0 10px;
  color: var(--slate);
  font-size: 11px;
}

.page-news .rail-list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .rail-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 13px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  background: var(--snow);
  color: var(--ink);
  font-size: 0.875rem;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.page-news .rail-name {
  font-weight: 500;
}

.page-news .rail-count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
  transition: color 0.2s var(--ease);
}

.page-news .rail-item:hover {
  border-color: var(--gold);
  background: var(--sand);
}

.page-news .rail-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-news .rail-index a {
  display: inline-block;
  font-size: 0.875rem;
  color: rgba(34, 26, 21, 0.72);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .rail-index a::before {
  content: "·";
  margin-right: 7px;
  color: var(--gold);
}

.page-news .rail-index a:hover,
.page-news .rail-index a:focus-visible {
  color: var(--red);
  border-bottom-color: var(--red);
  outline: none;
}

.page-news .rail-art {
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--sand);
  max-height: 220px;
}

.page-news .rail-art img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 220px;
  object-fit: cover;
  opacity: 0.7;
}

/* 筛选状态（纯 CSS，无脚本亦可读） */
.page-news #f-version:checked ~ .feed .feed-entry:not(.entry--version),
.page-news #f-column:checked ~ .feed .feed-entry:not(.entry--column),
.page-news #f-tips:checked ~ .feed .feed-entry:not(.entry--tips) {
  display: none;
}

.page-news #f-all:checked ~ .rail label[for="f-all"],
.page-news #f-version:checked ~ .rail label[for="f-version"],
.page-news #f-column:checked ~ .rail label[for="f-column"],
.page-news #f-tips:checked ~ .rail label[for="f-tips"] {
  background: var(--red);
  border-color: var(--red);
  color: var(--snow);
}

.page-news #f-all:checked ~ .rail label[for="f-all"] .rail-count,
.page-news #f-version:checked ~ .rail label[for="f-version"] .rail-count,
.page-news #f-column:checked ~ .rail label[for="f-column"] .rail-count,
.page-news #f-tips:checked ~ .rail label[for="f-tips"] .rail-count {
  color: rgba(253, 251, 247, 0.75);
}

.page-news #f-all:focus-visible ~ .rail label[for="f-all"],
.page-news #f-version:focus-visible ~ .rail label[for="f-version"],
.page-news #f-column:focus-visible ~ .rail label[for="f-column"],
.page-news #f-tips:focus-visible ~ .rail label[for="f-tips"] {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* 条目流 */
.page-news .feed-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-news .feed-head .section-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.375rem, 3.6vw, 1.875rem);
  line-height: 1.25;
  color: var(--ink);
}

.page-news .feed-head .lede {
  margin: 0;
  max-width: 36rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(34, 26, 21, 0.72);
}

.page-news .feed-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  border-left: 1px solid var(--news-line);
  display: grid;
  gap: clamp(28px, 4vw, 46px);
}

.page-news .feed-entry {
  position: relative;
}

.page-news .feed-entry::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--gold);
  box-sizing: border-box;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease),
    transform 0.2s var(--ease);
}

.page-news .feed-entry:hover::before {
  background: var(--gold);
  border-color: var(--gold);
  transform: scale(1.25);
}

.page-news .entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}

.page-news .tag {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.5;
}

.page-news .tag--version {
  background: rgba(166, 61, 46, 0.12);
  border: 1px solid rgba(166, 61, 46, 0.28);
  color: var(--red-deep);
}

.page-news .tag--column {
  background: rgba(199, 154, 69, 0.2);
  border: 1px solid rgba(199, 154, 69, 0.45);
  color: #7a5410;
}

.page-news .tag--tips {
  background: rgba(27, 42, 59, 0.08);
  border: 1px solid rgba(27, 42, 59, 0.24);
  color: var(--night);
}

.page-news .entry-time {
  margin: 0;
  font-size: 11px;
  color: var(--slate);
}

.page-news .entry-title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.0625rem, 2.8vw, 1.25rem);
  line-height: 1.45;
  color: var(--ink);
}

.page-news .entry-result {
  margin: 0;
  max-width: 40rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(34, 26, 21, 0.78);
}

.page-news .feed-foot {
  margin-top: clamp(32px, 4.4vw, 52px);
  padding: 20px 22px;
  border-left: 2px solid var(--red);
  background: var(--sand);
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
  display: grid;
  gap: 12px;
}

.page-news .feed-foot p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(34, 26, 21, 0.8);
}

.page-news .feed-foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.page-news .feed-foot-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--red-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--red);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .feed-foot-links a:hover,
.page-news .feed-foot-links a:focus-visible {
  color: var(--red);
  border-bottom-color: var(--amber);
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* 三个系列 */
.page-news .series {
  margin-top: clamp(52px, 7vw, 96px);
  padding: clamp(28px, 4.6vw, 52px) clamp(20px, 3.6vw, 44px);
  background: var(--sand);
  border-radius: var(--radius-l);
}

.page-news .series .section-head {
  display: grid;
  gap: 12px;
  max-width: 44rem;
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-news .series .section-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.125rem);
  line-height: 1.2;
  color: var(--ink);
}

.page-news .series .lede {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(34, 26, 21, 0.76);
}

.page-news .series-art {
  margin: 0 0 clamp(22px, 3.4vw, 34px);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--snow);
}

.page-news .series-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .series-grid {
  display: grid;
  gap: 18px;
}

.page-news .series-item {
  padding: 20px 22px;
  background: var(--snow);
  border: 1px solid rgba(34, 26, 21, 0.08);
  border-radius: var(--radius-m);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-news .series-item:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.page-news .series-num {
  margin: 0 0 10px;
  font-size: 11px;
  color: var(--gold);
}

.page-news .series-name {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.4;
  color: var(--red-deep);
}

.page-news .series-item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(34, 26, 21, 0.78);
}

/* 订阅提示 */
.page-news .subscribe {
  margin-top: clamp(44px, 6vw, 84px);
}

.page-news .sub-card {
  display: grid;
  gap: 26px;
  padding: clamp(26px, 4.4vw, 54px);
  background: var(--night);
  color: var(--snow);
  border-radius: var(--radius-l);
  overflow: hidden;
}

.page-news .sub-kicker {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 11px;
}

.page-news .sub-title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.375rem, 4vw, 2rem);
  line-height: 1.24;
  color: var(--snow);
}

.page-news .sub-body p {
  margin: 0 0 22px;
  max-width: 34rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(253, 251, 247, 0.8);
}

.page-news .sub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .sub-actions .btn--primary {
  background: var(--amber);
  color: var(--ink);
  border-color: var(--amber);
}

.page-news .sub-actions .btn--primary:hover,
.page-news .sub-actions .btn--primary:focus-visible {
  background: var(--amber-hi);
  border-color: var(--amber-hi);
  outline: 2px solid var(--snow);
  outline-offset: 2px;
}

.page-news .sub-actions .btn--ghost {
  color: var(--snow);
  border-color: rgba(253, 251, 247, 0.5);
  background: transparent;
}

.page-news .sub-actions .btn--ghost:hover,
.page-news .sub-actions .btn--ghost:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
  outline: none;
}

.page-news .sub-art {
  margin: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  background: rgba(253, 251, 247, 0.06);
}

.page-news .sub-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 响应式 */
@media (min-width: 720px) {
  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-news .board {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: clamp(32px, 4.4vw, 68px);
  }

  .page-news .rail {
    position: sticky;
    top: var(--news-sticky);
    align-self: start;
  }

  .page-news .rail-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .rail-item {
    width: 100%;
  }

  .page-news .rail-art {
    max-height: 280px;
  }

  .page-news .rail-art img {
    max-height: 280px;
  }

  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .sub-card {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-news .feature-body {
    max-width: 46rem;
  }
}